Question: The Imaam of a Masjid (mosque) in one of the villages in Egypt where we live is a Sufi who follows Al-Shadhuliyyah Tareeqah (Sufi order). This man teaches people to seek to draw close to Allaah (Tawassul) by means of the creatures of Allaah, such as the prophets and the Awliyaa’ (pious people), and he urges them to visit shrines. He tells them it is lawful to swear by the Prophet and the Awliyaa’, and to make Kaffaarah (expiation) if they break an oath made in their name. Our group, which is one of the Islaamic groups, debated with him over the errors he is committing and teaching to the people, but he remained adamant, citing Da‘eef (weak) and Mawdoo‘ (fabricated) Hadeeths to defend his opinion. Is it permissible to pray behind such a man (when he leads congregational prayers) given we have not yet finished building a Masjid? We have only collected some donations for it, so we still have not built it. We would like to know your Fatwaa concerning this issue.
May Allaah grant us all success. In addition, he declared the great scholars of Islaam, such as the Shaykh of Islaam Ahmad ibn Taymiyyah and Imaam Muhammad ibn ‘Abdul-Wahhaab (may Allaah be pleased and merciful to them) as disbelievers.
Answer: Seeking the help of the dead and calling upon them instead of or along with Allaah are considered acts of major Shirk (associating others with Allaah in His Divinity or worship) which takes one out of the fold of Islaam, whether the one whose help is sought is a prophet or otherwise… read more here.